11431310344 has 8 divisors (see below), whose sum is σ = 21433706910. Its totient is φ = 5715655168.

The previous prime is 11431310329. The next prime is 11431310369. The reversal of 11431310344 is 44301313411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6920576100 + 4510734244 = 83190^2 + 67162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714456889 + ... + 714456904.

Almost surely, 2^11431310344 is an apocalyptic number.

It is an amenable number.

11431310344 is a deficient number, since it is larger than the sum of its proper divisors (10002396566).

11431310344 is a wasteful number, since it uses less digits than its factorization.

11431310344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428913799 (or 1428913795 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11431310344 its reverse (44301313411), we get a palindrome (55732623755).

The spelling of 11431310344 in words is "eleven billion, four hundred thirty-one million, three hundred ten thousand, three hundred forty-four".